An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Greenfeld DA, Seli E.Greenfeld DA, et al.Fertil Steril. 2011 Jan;95(1):225-9. doi: 10.1016/j.fertnstert.2010.05.053. Epub 2010 Jul 18.Fertil Steril. 2011.PMID: 20643400Free article.
Luk J, Greenfeld DA, Seli E.Luk J, et al. Among authors: greenfeld da.Maturitas. 2010 Aug;66(4):389-96. doi: 10.1016/j.maturitas.2010.03.024. Epub 2010 May 6.Maturitas. 2010.PMID: 20451337Review.
Greenfeld DA, Seli E.Greenfeld DA, et al.Curr Opin Obstet Gynecol. 2016 Jun;28(3):202-5. doi: 10.1097/GCO.0000000000000266.Curr Opin Obstet Gynecol. 2016.PMID: 27077473Review.